Border Patrol personnel in riot gear and gas masks stood guard outside an industrial park in the city of Paramount, deploying ...

Volcano Watch is a weekly article and activity update written by U.S. Geological Survey Hawaiian Volcano Observatory scientists and affiliates. This week’s article is by Mike Cappos, a gas field ...

Scientists are once again astounded by NASA’s Mars Odyssey spacecraft, which took a stunning picture of Arsia Mons, one of ...

In 1669, in what has been considered the volcano's worst known eruption, lava buried a swath of Catania, about 15 miles away ...

On May 2, as sunlight crept over the Martian horizon, the Odyssey spacecraft captured Arsia Mons, a towering, long-extinct ...

A massive underwater volcano located approximately 300 miles off the coast of Oregon is on the verge of erupting, scientists ...

Heavy rain spawned by a low-pressure area and the southwest monsoon sent lahar and mud deposits cascading down the slopes of Kanlaon Volcano in Negros Occidental on Friday, according to the Philippine ...

Arsia Mons, which dwarfs Earth's tallest volcanoes, and its two neighboring volcanoes are often surrounded by water ice ...

At its peak, Sutter Buttes stands just 610 meters (2,000 feet) tall. This means it would be dwarfed by the Rockies, which reach heights of 4,400 meters (14,438 feet) (4,40 meters) above sea level. But ...

A spectacular new image from NASA’s longest-running Mars orbiter has captured a breathtaking view of a giant Martian volcano ...

Mars Odyssey orbiter has captured a new panorama of Arsia Mons, one of the largest volcanoes on Mars, peeking through morning ...

Arsia Mons, the southernmost of the Tharsis Montes trio, stands at an awe-inspiring 20 kilometers high, dwarfing Earth’s ...